Fiberglass gratings are used as catwalks and as floor grids to keep feet off
of wet floors in chemical plants, etc. Those gratings look as you describe,
and are wonderful for stabilizing grass areas for traffic. They truly
disappear in the grass, but increase the load-bearing capability of the
ground very well.
Buying them new, they're incredibly expensive, but if you can get them used,
it's a wonderful solution. Wish I could find some for the grass in front of
my hangar.
Karl
> There's also a system using hard plastic gratings with about a 2" x 2"
> spacing, where the vertical slats are rather thin. With these, a smaller
> percentage of the grass-growing area is covered by the material, and they
> can
> become almost invisible if the grass is allowed to grow above the top
> surface.
> Doug
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